Bonjour J'ai fais un exercice pouvez vous me corriger si j'ai faux. Merci d'avance
(3x-1)(2x+5)-3(x+1)(x-2)
=5x^+15x-2x-5-3+3x^-2x+1x-2
=5x^+13x-2+x^-3x-2
=6x^+10x
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